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+# Setup
+
+## Prerequisites
+
+Before starting to use **N-API** you need to assure you have the following
+prerequisites:
+
+* **Node.JS** see: [Installing Node.js](https://nodejs.org/)
+
+* **Node.js native addon build tool**
+
+  - **[node-gyp](node-gyp.md)**
+
+## Installation and usage
+
+To use **N-API** in a native module:
+
+  1. Add a dependency on this package to `package.json`:
+
+```json
+  "dependencies": {
+    "node-addon-api": "*",
+  }
+```
+
+  2. Reference this package's include directory and gyp file in `binding.gyp`:
+
+```gyp
+  'include_dirs': ["<!@(node -p \"require('node-addon-api').include\")"],
+  'dependencies': ["<!(node -p \"require('node-addon-api').gyp\")"],
+```
+
+  3. Decide whether the package will enable C++ exceptions in the N-API wrapper.
+     The base ABI-stable C APIs do not throw or handle C++ exceptions, but the
+     N-API C++ wrapper classes may _optionally_
+     [integrate C++ and JavaScript exception-handling
+     ](https://nodejs.github.io/node-addon-api/class_napi_1_1_error.html).
+     To enable that capability, C++ exceptions must be enabled in `binding.gyp`:
+
+```gyp
+  'cflags!': [ '-fno-exceptions' ],
+  'cflags_cc!': [ '-fno-exceptions' ],
+  'xcode_settings': {
+    'GCC_ENABLE_CPP_EXCEPTIONS': 'YES',
+    'CLANG_CXX_LIBRARY': 'libc++',
+    'MACOSX_DEPLOYMENT_TARGET': '10.7',
+  },
+  'msvs_settings': {
+    'VCCLCompilerTool': { 'ExceptionHandling': 1 },
+  },
+```
+
+  Alternatively, disable use of C++ exceptions in N-API:
+
+```gyp
+  'defines': [ 'NAPI_DISABLE_CPP_EXCEPTIONS' ],
+```
+  4. If you would like your native addon to support OSX, please also add the
+  following settings in the `binding.gyp` file:
+
+  ```gyp
+  ['OS=="mac"', {
+      'cflags+': ['-fvisibility=hidden'],
+      'xcode_settings': {
+        'GCC_SYMBOLS_PRIVATE_EXTERN': 'YES', # -fvisibility=hidden
+      }
+  }]
+  ```
+
+  5. Include `napi.h` in the native module code.
+     To ensure only ABI-stable APIs are used, DO NOT include
+     `node.h`, `nan.h`, or `v8.h`.
+
+```C++
+#include "napi.h"
+```
+
+At build time, the N-API back-compat library code will be used only when the
+targeted node version *does not* have N-API built-in.
+
+The preprocessor directive `NODE_ADDON_API_DISABLE_DEPRECATED` can be defined at
+compile time before including `napi.h` to skip the definition of deprecated APIs.